TiTiKEi is the first book by renowned hentai artist ISHiKEi (also known under his circle name as Nise Midi Doronokai). It is a compilation of all of his original work since the first chapter, "Various Lewd Things" (Insei Iro Iro), debuted in COMIC Masyo back in 2005. TiTiKEi was the best-selling hentai manga in 2013, breaking records in Japan and solidifying ISHiKEi as one of the top hentai artists in the world.